Work handling device



Sept. 6, 1-932.

J. c. HANNA WORK HANDLING DEVICE Filed Dec.- 24. 1928" s Sheet-Sheet 1Sept. 6, 1932. J. c. HANNA 1,876,290

4 WORK HANDLING DEVICE Filed Dec. 24, 1928 3 Sheets-Sheet 2 S p J. c.HANNA 1,876,290

WORK HANDLING DEVICE Filed Dec. 24. 1928 s Sheets-Sheet 5 rivetingPatented Sept. 6, 1932 UNITEDSTATES'PATENT oFFicr.

JOHN o. HANNA, or CHICAGO, ILLINOIS, ASSIGNOR 'ro HANNA ENGINEERINGWORKS,

' or CHICAGO, ILLINOIs, A co aronA'rIoN or I LINoIs 2 WORK HANDLINGDEVICE Application filed December 24,1928, Serial No..328,174.

This invention relates to apparatus for handling cylindrical work to beriveted. he purpose vof this invention is to provide-new and improvedequipment for handling and form long cylinders of pipes of substantiallylarge dimensions; thus there may be formed is showntubesused in ball ortube mills, sections of aqueduct pipe, pen stock pipe, etc.

Certain necessary steps mvolved in the fabrication of steel plate intothe forms previously mentioned are as follows: The work must be broughtinto position and supported in such a manner that the girth seams maybeeasily brought to a riveting device.

includesv bringing one die into position to .hold the manufactured headof the rivet die crushes the opposite end of the rivet to form the otherhead. The

work should be'so supported that it may be.

rotated to bring the respective rivet holes in the girth seams intoposition to be riveted.

Further,the apparatus should be so arranged that additional sections tobe joined may be easily and quickly brought into position and thecompleted worksupported in such 'a manner that it can be easily removedfor shipment. All of the above mentioned steps are efiiciently carriedout by my improved equipment.

It is further a specific object of this invention to support the work inposition to be riveted by suspension -means, as disclosed comprisingchains for suspendlng thework from upper frame sections in such a mannerthat the workniay be easily manipulated and rotated.

Another object of my invention consists in the provision and arrangementof apparatus so that the following operations maybe eas ily and quicklycarried cutie-raising a section ofthe work to be joined into position'so that it maybe temporarily joined by bolt ing to the completed work;then raising both the new section and the completed work and moving themlongitudinally so as to bring the new section into position to beriveted after loweringin place. 1

sectional tubular members formed of steel plate and riveting themtogether to into position relative V The step of riveting Another andfurther object of my inven- 7 tion consists inefficient means forbringing a riveter supported .on a carriage and tracks into positionrelative to the work.

Further and additional objects of this invention will be more clearlyunderstood from the detail description. 7

In the drawings where one preferredform A Figure l is a side elevationof the complete apparatus showing the worksupported and theriveter inposition to rivet the girth seam.

Figure 2 is a vertical sectional elevation on line 2-2 of Figure 1,showing. the forward suspension means. I

Figure 3 is a vertical sectional elevation of line 3- 3 of Figure 1,showing the'rearward suspension means.

Figure 4 is adetall view showing the shiftv W able clutchforoperatingeither the rotation means or raising means for the forwardend of the work. 7 e

Figure 5 is a detail view of clutch means supported on' therearwardfmovable frame adapted to cause the operation of the traversingmeans or the raising means.

The apparatus as shown in the drawings comprises generally a forwardframework which serves as a, support for hoisting ap-r paratuslongitudinally movable and'suspension means for the forward end of thework;

. a rearward movable gantry forming a sup port for the rearwardsuspension means, and

j a riveter supported on a carriage running on tracks beneath theforward frame.

The forward frame work will be first described having reference toFigures 1 and 2., Theframe work denoted generally by 1 is made up fromsteel sections and comprising four corner posts 2'2, 3-3. Posts 2 and 3are longitudinally spaced sufficient to allow the sections of workhandled tobe moved transversely between the posts and into place.

The posts 2 and 3 are 'connectedat their top ends by longitudinalhorizontal members 4'.

and transverse horizontal members 5. The

sides of the frame work are braced by cross beams GeXtending betweenposts 2 and 3.

Near thetops of posts 2 and 3 brackets 7 are riveted and form a supportfor Lbeams 8 extending longitudinally of the frame work and to anoverhanging end beyond post 3. The overhanging ends of the I-beams 8 arebraced by members 9 extending diagonally to the posts 3. The I-beains 8serve as supports for tracks 10 which extend from the post 2 to theoverhanging end of the beam 8. A carriage 11 running on wheels 12travels on the tracks 10. This carriage may be traversed in the usualmanner by an independent motor (not shown). The carriage serves as asupport for the hoisting apparatus comprising a motor 20 and ahoistingdrum 21. A hoisting cable 22 supports a bridge 23 to which isattached service slings comprising four chains 24 having hooks 25 attheir ends. These chains may be passed around the section of work to belifted and hooked together in order to raise the section into place. Toremove the chains out of the way when the riveting operation is takingplace, strings 26 tied to the middle points of the chains and runningaround pulleys 27 on the bridge 23 may be drawn up by windlass 28. Theforward suspension means consist of a flexible endless chain 30 runningaround the work and guided by pulleys or sheaves 31, 32, 33, 34, 35, 36,and 37 Pulley 34 is a drive pulley and when rotated in either directionmoves the endless chain 30 to rotate the work. Pulley 36 is verticallymovable by rotation of screw shaft 47. The vertical movement of pulley36 will serve to raise or lower the work, as the case may be, by varyingthe loop of chain between guide pulleys 31 and 37. It will be noted thatthe supporting chain 30 extends completely around the hoisting apparatusas guided by pulleys supported on the frame 'work, thus movement of thehoisting apparatus interferes in no way with the suspension means forthe forward end of the work. Driving means are provided for eitherrotating pulley 34 or moving pulley 36 in order to either rotate thework or raise or lower the work, and comprise a frame 38 supporting areversible motor 39 shown in Figure 2. A worm screw 40 on the motorshaft rotates a worm gear 41 which is secured to shaft 42 to which issecured a pinion 43 having a wide face. Details of the drive from pinion43. to the screw shaft 47 or the pulley 34 are shown in Figure 4 inwhich a shiftable pinion 44 is in mesh with the pinion gear 43 and isformed integrally with a beveled gear 45 shown in mesh with bevel gear46 secured to the upper end of the screw shaft 47; thus rotation of themotor in either direction will serve to either lower or raise the workby raising or lowering pulley 36 as the case may be. The pinion gear 44is formed integrally with a clutch collar having clutch teeth 48 forengagement with a collar having clutch teeth 49. The.

clutch element 49 is formed integral with the drive pulley 34 so thatlongitudinal movement of pinion gear 44 by suitable shifting means willengage clutch elements 4859 and move bevel gear 45 out of mesh with gear46. Operation of the motor 39 will then cause rotation of the work bymovement of theendless chain 30 due to rotation of the drive pulley 34.

The rearward end of the work is supported by a rearward movable gantry50, shown in Figures 1 and 3. "Movable gantry 50 comprises a verticalframe formed from posts 5152 connected at their upper ends by transversebeam 53 and secured at their lower ends to horizontal longitudinal beams54, which are braced by beams 55. 'At the ends of the horizontal members54, wheels 56 are secured to support the frame work for movement alongthe tracks 37. As shown in F igure- 1, drive means for rotating theWheels and mov ing the gantry on the tracks is provided and consistsofgear 58 attached to one of wheels 56 on each side of the frame,meshing wlth bevel gear'59, secured'to horizontal shaft 60 which isrotated by vertical shaft 63 through meshing bevel gears 61-62. Therearward suspension means similar to the forward suspension meansconsists of an endless chain 70; in this case, guided by pulleys 71 and,7 2. Pulleys 71 and 72 are supported for movement to and from eachother due to rotation of a double screw shaft 73, thus rotation of thescrew shaft 7 3 inone direction will bring pulleys 71 and 72 closertogether thereby lowerin the work and, rotation in the oppositedirection, will move the pulleys 71 and 72 farther apart thereby raisingthe work.

The means for moving the gantry on the tracks or raising or lowering thework consists of a reversible motor 75 supported on a frame 74; tilemotor shaft causing rotation of a worm gear 7 6 secured. to a transversedrive shaft 77 causes the rotation of vertical shaft 82 throughbevelgears 78. A bevel gear 80 is secured to vertical shaft 82 to cause.

rotation of horizontal double screw shaft 7 3 through bevel gear 31.Keyed to shaft 82 is a s-hiftable clutch havin clutch teeth. 83 forengagement with a companion clutch element formed integral withvertical. shaft 63;

It will be apparent that I shaftll. is shown in detail in Figure 5, the

ing the forward suspension chain and either form may be used as desired.

The riveter shown in Figure 1 supported for longitudinal movementbeneath the forward frame consists of a U-shaped frame 90 and, when inposition for riveting, its upper leg extends within the interior of thework and supports and holds an upper die 91 for forming the inner headof the rivet while the other lower leg of the riveter extends beneaththe work and serves as a guide for a movable lower die 92 which movesupward to hold the manufactured head of the rivet. The U-shaped frame issupported by pivot 93 on a carriage 9a which is guided on tracks 95 bysupporting wheels 96. A ram 97 is shown for operating the riveter. Theframe of the riveter is so supported relative 'to its carriage 94 thatthe normal tendency of the weight of the riveter is to swing the U-shaped frame counterclockwise, viewed in Figure 1, thus bringing theupper die 91 away from the work. Upon movement into position operationof the ram 91 causes the lower die 92 to move upward until it encountersthe manufactured head of the rivet thus holding the rivet in position.Further upward movement of the lower die 92 would necessitate a raisingof the work which does not occur owing to the weight of the work,instead there is a movement of the U-shaped frame relative to the lowerdie, thus a clockwise movement of the rivet frame is caused bringing theupper die 91 down upon the inside end of the rivet crushing it to formthe inside head. Any usual means may be provided to move the riveter onits supporting tracks. 7

The use of the apparatus so far described is substantially as follows:Assuming that Y the sections A, B, C, as shown, havevbeen rivetedtogether, the rivet frame is moved forwardly and beyond the framework onits supporting tracks. The movement of the rivet frame from beneath. theframe work 1 allows an additional section to be placed beneath thehoistingmeans. The hoisting bridge 23 is lowered and chains 2 passedaround the section and connected by their hooks 25. Upon rotation of thehoisting motor 20, the section'is raised until. it is substantiallyadjacent'the end o'fsect-ion C. The additional section may then betemporarily bolted to section C and then the hoisting means operated toraise the forward end of the work, while the rearward suspension meansare operated to raise the rearward end of the work, thusthe sections A,B,

together with the additional section are raised and the support of chain30 is released. At the same time as the parts are raised they aretraversed rearwardly by movement of the hoisting carriage 11 and therearward movable gantry 50, until the additional section issubstantially over the position of'section G, as shown in Figure 1, thelowering of the work will then support the additional- The work is nowin position to be riveted and y the rivet frame 90 is *moved rearwardlyby movement of carriage 9a and the operator may then insert the rivetsin respective rivet holes and operate the riveter to form the rivetheads. The work may be rotated by the means described to bring therespective rivet holes and the girth seam into position. 7 In use, theapparatus is so arranged that flat cars may be run beneath the work andthe completed work lowered on the fiat cars for shipment. It is apparentthat improved work-handling devices have been described whereby thehandling of the work is expedited and the operation of rivetingfacilitated. I

I claim:

1. In apparatus for handling sectional eylindricalwork adapted to beprogressively riveted section by section, a fixed framework extendingabove and over the longitudinal path of movement of the work, horizontaltrackways on said framework above said work, hoisting mechanismsupported onsaid trackways for travel in a path above the work, andadapted to lift and longitudinally move the work, an endless slinghaving a loop for receiving and suspending the work and means on saidframework for supporting said sling to extend around and above the pathof travel of said hoisting mechanism. 2. In apparatus for handlingsectional cylindrical work adapted to be progressively riveted sectionby sec'tion,a fixed framework extending above and over the longitudinalpath of movement of the work, horizontal'trackways on said frameworkabove said work, hoisting mechanism supported on said trackways fortravel in a path above the loop for receiving and suspending the work,means on said. framework for supporting sa1d sling to extend around andabove the path of travel of said hoisting mechanism, and means formoving sa1d slmg to rotate the work.

3. In apparatus for handling sectional cylindrical work adapted to beprogressively riveted section by section, a fixed framework extendingabove and over the longtitudinal its path of movement of the work,horizontal trackways on said framework above said work, holstingmechanism supported on said trackways for travel in a path above'thework, and adapted to lift the workby one end and longitudinally move thework, an endless sling having a loop for receiving and suspending oneend of the work, means on said 7 framework for supporting said sling toex te id arou id and ELbOYB the path of travel of said heistlngmechanlsm, means for moving said slin to rotate the Work, and a, movableframe for supporting the other end f the Work in cooperation with eithersaid hoisting mechanism 01 said sling.

Signed at Chicago, Illinois, this 20th day of December, 1928.

. JOHN G. HANNA.

